Nonskidding device and brake for automobiles



Sept. 7 1926.

I G. NIETO NONSKIDDING DEVICE IAD. BRAKE EUR AUTOMOBILES Filed sept. 16, 1925 le?. .T3-'5.

r Il :115111 E 111,1

Patented Sept. l7, 1926i.

Y UNITED STATES ,l lanneonro nimmer snnlnivroni'o, TEXAS;n i

NONVSKIiDDING DEVICE AND 'BRAKE FOR AUTOMOBILES.

'Application mea september 1e, i925. serial no. 56,563.

This invention relates to improvements in automobile brakes, and it is the principalV object of the invention tol provide a brake havinga plurality of road engaging teeth adapted to be operated i'rom the seat ot the driver in cases of emergency and on slippery roads, to positively and almost instantaneously brake the car. l

Another object of the invention is the provisionot an automobile brake oi this type allowing an elevation vof the road engaging teeth above the road bed and also a limited change of the angle of engagement between road and teeth.

A further object of the invention is the provision of abrake of simpleV and inexpensive construction, yet durable and positively acting.

These and other objects andV advantages of the invention will become more fully known as the description tliereot` proceeds, and will lthen be specificallyV vpointed out :in the ,appended claims.

` In the accompanying dran'fin'g,` a material part of thisv disclosure: f

Figure Y1 is a side elevation of an automobile equipped witli a brake constructed according to the present invention.

Figure 2 is a sectional side elevation of 'a brake according to the 'invention on an enlarged scale. Y

Figure 3 is a section taken on line '3 3 `of Fig. 2. i y

YAvcar 10 of any well 'known type has atftached to its rear aXle 11 a sleeve 12 to which clamp bands "13 are secured, held in place thereon by a plurality of nut bolts 14: passed through the meeting flanges ot the bands. With these bands the body 15 of the brake is formed. v

To the lowerend of the body 15 is pivotally attached, as at 16, a bracket 17 carrying a pluralityof road engaging teeth 13 held between the depending arms of bracket 17p'by means of a pin 19carrying countery nuts 20,.` 21 at its projecting ends, while 4sleeves 22 separate the single teeth 18., `A Y certain play is allowed in the elongated slots 23 of the bracket arms for the bolt 19.

The bodies 'of the teeth 18Vhave each an elongated slot 24 formed therein in which Y acamv 25 on the bolt26 is provided so that Va certain limited lateral play of the teeth position.

forming.

y is possible. The bolt 26 carries at its projecting ends nuts 27, 28.

To the pivot pin 16 isV attached the lowei` end of an operating liiik 29 having secured. to itsr oppositeend Va draw rod 30, the otherI end or' which is secured to the lower end of an operating lever 31 pivoted intermediate its ends, as at 32to the car trame, and lever 31 is equipped with the usual type of locking member 33 engaging betweenthe teeth oa toothed segment 341.

The operation ot the device will be entirely clear from theabove description, upon the proper manipulation ot' lever 31 the brake teeth can be brought into engagementl with the road ybed or elevated thereabove whereupon the lever is locked in its adjusted Onr account of the cam action a limited regulation of the angle ot engagement between the teeth and the road bed isl possible. Y

have shown and described the While VI preferred forni of the invention as an example of the many ways in which the .saine Y may be practically constructed, it is to be understood, that such changes as tall within the scope of the claims may be made without departure from the spirit of the invention.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent is:

"1.` Automobile brake comprising Va plurality otteeth adapted to engage the road, a holding'means for supporting said teeth, allowing a play of the sa1ne,.means for rsecuring said brake to the automobile, means for allowing a change of the angle of engagement betweenV said teeth and the road,

and an operating lever for operating the brake from the seat of the driver.

2. 'Automobile brake comprising a bracket, depending arms on said bracket having lateral longitudinal or elongated perforations, means for attaching said kbracket to a car, a Vplurality of teeth adapted to engage the road with their lower ends, means mounted for play in said bracket for holding said teeth, a means for allowing a certain limited adjustment of the angle ot engagement between said teeth and the roadbed, and a means adapted to be locked for operating said'brake from the seat of a driver.

8. Automobile brake comprising a bracket, means for securing Said bracket to the rear axle 0I the automobile, to which said bracket is pivotally attached, a plurality ot' teeth mounted :for limited motion in said bracket, means for separating the single teeth, said teeth having elongated Slots formed therein, a cam playing in said slots for allowing;` a limited adjustment of the angle of engagement between teeth and l0 l'oad, and a means for operating said brake from the drivers seat.

ln testimony whereof I have affixed my signature.

GREGORIO NIETO. 

